Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...
Arduino Eclipse plugin - Where Arduino meets Eclipse
PlatformIO - Next-generation IDE for IoT
Raspberry Pi - The Raspberry Pi is a tiny and affordable computer that you can use to learn programming through fun, practical projects. Join the global Raspberry Pi community.
embedXcode - embedXcode is a template for Xcode.
Arduino - Build your own electronics